Enclosure not stated · 3 knobs
Exar HR-03 Hammer
Based on the Exar HR-03 Hammer· 1 other board clones it
- Category
- Distortion
- Build
- Vero· 21×21· 22 cuts, 7 links
- Layout
- Unverified · no build reported at Dirtbox Layouts yet
- Tags
- Distortion, Exar
From the post
An old polish distortion which is based on Ibanez Trash Metal. Which is basically a buffered and boosted Rat circuit with an additional fixed gyrator EQ stage after the distortion circuit. Schematic is avaiable HERE.
Schematic
This is a board layout, a drawing of where each part goes, and the post may link the schematic it was drawn from. Open the layout at Dirtbox Layouts. No KiCad fragment has been drawn for this circuit yet.
Parts list 41 rows
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Check before you build · 1 value the reader of this layout was not sure of
- 16K at column 13, rows L-N: printed clearly, unusual value
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 18 | ||||
| ×1 | 2.2M | 2.2M | read from the layout by eye | |
| ×3 | 1M | 1M | read from the layout by eye | |
| ×1 | 560K | 560k | read from the layout by eye | |
| ×1 | 470K | 470k | read from the layout by eye | |
| ×1 | 270K | 270k | read from the layout by eye | |
| ×1 | 100K | 100k | read from the layout by eye | |
| ×2 | 47K | 47k | read from the layout by eye | |
| ×1 | 22K | 22k | read from the layout by eye | |
| ×1 | 16K | 16k | read from the layout by eye | |
| ×7 | 10K | 10k | read from the layout by eye | |
| ×1 | 8.2K | 8.2k | read from the layout by eye | |
| ×1 | 3.3K | 3.3k | read from the layout by eye | |
| ×1 | 2.2K | 2.2k | read from the layout by eye | |
| ×2 | 1K | 1k | read from the layout by eye | |
| ×1 | 820Ω | 820 | read from the layout by eye | |
| ×1 | 470Ω | 470 | read from the layout by eye | |
| ×1 | 390Ω | 390 | read from the layout by eye | |
| ×1 | 180Ω | 180 | read from the layout by eye | |
| Capacitors 12 | ||||
| ×1 | 47pF | 47p | read from the layout by eye | |
| ×2 | 100pF | 100p | read from the layout by eye | |
| ×1 | 3.3nF | 3.3n | read from the layout by eye | |
| ×1 | 10nF | 10n | read from the layout by eye | |
| ×3 | 47nF | 47n | read from the layout by eye | |
| ×1 | 68nF | 68n | read from the layout by eye | |
| ×1 | 100nF | 100n | read from the layout by eye | |
| ×1 | 470nF | 470n | read from the layout by eye | |
| ×3 | 1uF | 1u | electrolytic; read from the layout by eye | |
| ×2 | 10uF | 10u | electrolytic; read from the layout by eye | |
| ×1 | 47uF | 47u | electrolytic; read from the layout by eye | |
| ×1 | 100uF | 100u | electrolytic; read from the layout by eye | |
| Diodes 3 | ||||
| D1 | 1N4148 | 1N4148 | read from the layout by eye | |
| D2 | 1N4148 | 1N4148 | read from the layout by eye | |
| D3 | 1N5817 | 1N5817 | read from the layout by eye | |
| Transistors 4 | ||||
| Q1 | 2SK30A | 2SK30A | JFET; read from the layout by eye | |
| Q2 | BC550B | BC550B | read from the layout by eye | |
| Q3 | BC550B | BC550B | read from the layout by eye | |
| Q4 | BC550B | BC550B | read from the layout by eye | |
| ICs 1 | ||||
| IC1 | TL072 | TL072 | read from the layout by eye | |
| Potentiometers 3 | ||||
| Gain | B100K | B100k | Potentiometer | read from the layout by eye |
| Tone | B100K | B100k | Potentiometer | read from the layout by eye |
| Level | A50K | A50k | Potentiometer | read from the layout by eye |
Other boards based on the Exar HR-03 Hammer
- Exar HR-03 Hammer Tagboard Effects